Finding Percentages and Fractions

The video tutorial explains how to solve a math problem where 30 is 25% of an unknown number. The instructor sets up the problem, uses cross multiplication to find the unknown number, and verifies the result. The solution shows that 30 is 25% of 120, and the instructor concludes by verifying the calculation and summarizing the process.

What is the first step in solving the problem of finding what number 30 is 25% of?

• Divide 30 by 25

• Set up an equation using cross-multiplication

• Multiply 30 by 25

• Subtract 25 from 30

In the equation 30 is 25% of x, what does x represent?

• The number 25

• The percentage

• The unknown number

• The number 30

What is the result of multiplying 30 by 100 in the cross-multiplication process?

• 30

• 3000

• 300

• 30000

After finding the value of x, what is the next step to verify the solution?

• Add 25 to x

• Divide x by 25

• Break down the percentage into fractions

• Multiply x by 25

What fraction of 120 is 30?

• 1/5

• 1/4

• 1/2

• 1/3

What is the final conclusion of the video tutorial?

• The problem cannot be solved

• The solution is verified and correct

• The method is not useful

• The formula is incorrect